A continuous ink supply control system for inkjet printing

Abstract

The invention discloses an inkjet printing continuous ink supply control system, comprising an ink storage assembly, the ink storage assembly includes a main ink bottle, an auxiliary ink bottle and an overflow bottle, the main ink bottle is connected with the auxiliary ink bottle to supply the auxiliary ink bottle Ink, the overflow bottle is connected with the auxiliary ink bottle to accommodate the overflow in the auxiliary ink bottle; positive pressure system, the positive pressure system is connected with the main ink bottle; negative pressure system, the negative pressure system is connected with the overflow bottle; when spraying low viscosity When using ink, the negative pressure system applies a first negative pressure to the overflow bottle to suck the ink in the main ink bottle to the auxiliary ink bottle for bubble removal, and the negative pressure system applies a second negative pressure to the overflow bottle to make the ink Hovering at the nozzle, the second negative pressure is less than the first negative pressure; when spraying high-viscosity ink, the negative pressure system applies the first negative pressure to the overflow bottle to suck the ink in the main ink bottle to the auxiliary ink bottle To remove bubbles, the positive pressure system applies the first positive pressure to the main ink bottle to make the nozzle discharge liquid. It adopts the feeding method combining positive pressure and negative pressure, which can adapt to inks of different viscosities and has good stability.

Description

technical field [0001] The invention relates to the technical field of ink supply, in particular to an inkjet printing continuous ink supply control system. Background technique [0002] At present, many printing factories use employees to manually transfer small cans of ink to the printing machine, and then add ink manually. This method of work is not only inefficient, but also easy to stain other parts and even damage them. parts. Therefore, the traditional manual ink filling can no longer meet the development needs of many enterprises. [0003] Moreover, inkjet printing equipment is now an automated production line, which must continue to work without interruption, which requires a set of automatic and compatible use. [0004] However, the existing more advanced way of adding ink is to add ink through a large ink pump station, which requires employees to control the switch of the valve, which requires more labor costs. In the printing process, the control of ink is an ...

AI Technical Summary

Problems solved by technology

If there is too little ink in the ink cartridge during the printing process, the ink will be broken, which will inevitably affect the quality of the printed product. A series of preparations for restarting the machine will also cause waste of time, ink and paper.

If there is too much ink, the ink will be easily oxidized and skinned, and if the skinned ink enters the printing machine, it will affect the quality of the printed product

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